<!--
 * @Author: your name
 * @Date: 2020-12-20 20:39:23
 * @LastEditTime: 2021-01-07 13:26:37
 * @LastEditors: Please set LastEditors
 * @Description: In User Settings Edit
 * @FilePath: /vue_shop/src/components/Home.vue
-->
<template>
  <el-container class="home-container">
      <!-- header -->
    <el-header>
        <div>
            <img src="../assets/heima.png" alt="">
            <span>电商后台管理系统</span>
        </div>
        <el-button type='info' @click="loginout">LoginOut</el-button>
    </el-header>
    <!-- 页面main体 -->
    <el-container>
        <!-- 侧边栏 -->
      <el-aside :width="isCollapse ? '64px': '200px'">
          <div class="toggle-button" @click="toggleCollapse" >|||</div>
          <!-- 侧边栏菜单区域 -->
        <el-menu background-color="#333744" text-color="#fff" active-text-color="#409eff" unique-opened :collapse="isCollapse" :collapse-transition="false" :router="true" :default-active="activePath">
            <!-- 一级菜单 -->
          <el-submenu :index="item.id+''" v-for="item in menulist" :key="item.id">
              <!-- 一级菜单模版区 -->
            <template slot="title">
            <i :class="iconsObj[item.id]"></i>
            <span>{{ item.authName }}</span>
            </template>
        <!-- 二级菜单 -->
            <el-menu-item :index="'/'+subitem.path" v-for="subitem in item.children" :key="subitem.id" @click="saveNavState('/' + subitem.path)">
                <!-- 一级菜单模版区 -->
                    <template slot="title">
                    <i class="iconObj[item.id]"></i>
                    <span>{{ subitem.authName }}</span>
                    </template>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <!-- 右侧内容主体 -->
      <el-main>
          <!-- 路由占位符 -->
          <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  data() {
    return {
      menulist: [],
      iconsObj: {
        125: 'iconfont icon-user',
        103: 'iconfont icon-tijikongjian',
        101: 'iconfont icon-shangpin',
        102: 'iconfont icon-danju',
        145: 'iconfont icon-baobiao'
      },
      // 是否折叠菜单
      isCollapse: false,
      // 被激活的链接地址
      activePath: ''
    }
  },
  created() {
    this.getMenuList()
    this.activePath = window.sessionStorage.getItem('activePath')
  },
  methods: {
    loginout () {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    // 获取所有菜单
    async getMenuList() {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.menulist = res.data
    },
    // 点击按钮切换菜单的折叠状态
    toggleCollapse () {
      this.isCollapse = !this.isCollapse
    },
    saveNavState (activePath) {
      window.sessionStorage.setItem('activePath', activePath)
      this.activePath = activePath
    }
  }
}
</script>
<style lang="less" scoped>
.el-header {
  background-color:#373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  color:#fff;
  font-size: 20px;
  > div{
      display: flex;
      align-items: center;
      span{
          margin-left:15px;
      }
  }
}
.el-aside {
  background-color:#333744;
  .el-menu{
      border-right: none;
  }
}
.el-main {
  background-color:#eaedf1;
}
.home-container{
    height: 100%;
}
.iconfont{
    margin-right: 10px;
}
.toggle-button{
    background-color: #4A5064;
    font-size: 10px;
    line-height: 24px;
    color: #fff;
    text-align: center;
    letter-spacing: 0.2em;
    cursor: pointer;
}
</style>
